13900707 has 8 divisors (see below), whose sum is σ = 20593680. Its totient is φ = 9267120.

The previous prime is 13900703. The next prime is 13900709. The reversal of 13900707 is 70700931.

13900707 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13900707 - 2² = 13900703 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 514841 = 13900707 / (1 + 3 + 9 + 0 + 0 + 7 + 0 + 7).

It is not an unprimeable number, because it can be changed into a prime (13900703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257394 + ... + 257447.

It is an arithmetic number, because the mean of its divisors is an integer number (2574210).

Almost surely, 2^13900707 is an apocalyptic number.

13900707 is a deficient number, since it is larger than the sum of its proper divisors (6692973).

13900707 is an equidigital number, since it uses as much as digits as its factorization.

13900707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514850 (or 514844 counting only the distinct ones).

The product of its (nonzero) digits is 1323, while the sum is 27.

The square root of 13900707 is about 3728.3651913406. The cubic root of 13900707 is about 240.4430877186.

The spelling of 13900707 in words is "thirteen million, nine hundred thousand, seven hundred seven".